IAG Services
The International Association of Geodesy (IAG) is the scientific organization in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is a member of the International Association of Geodesy and Geophysics (IUGG) which itself is a member of the International Science Council (ICS, https://council.science/). GFZ runs and contributes to the following international IAG Services: (1) IERS - International Earth Rotation and Reference Systems Service; (2) IDS International DORIS Service; (4) IGS - International GNSS Service; (5) ILRS - International Laser Ranging Service; (6) IVS - International VLBI Service for Geodesy and Astrometry; IGFS - International Gravity Field Service; (7) ICGEM - International Centre of Global Earth Models; (8) IGETS - International Geodynamics and Earth Tide Service as part of GGOS - The Global Geodetic Observing System.
